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def decode_protobuf_array(data, obj_class):

n = len(data)

i = 0

res = []

while i < n:

(length, i) = _DecodeVarint(data, i)

l3 = obj_class()

l3.ParseFromString(data[i:i+length])

res.append(l3)

i += length

return res

def encode_protobuf_array(res):

z = ""

for o in res:

d = o.SerializeToString()

z += _EncodeVarint(len(d))

z += d

return z

#decoder.py

def _VarintDecoder(mask):

local_ord = ord

def DecodeVarint(buffer, pos):

result = 0

shift = 0

while True:

b = local_ord(buffer[pos])

result |= ((b & 0x7f) << shift)

pos += 1

if not (b & 0x80):

result &= mask

return (result, pos)

shift += 7

if shift >= 64:

raise _DecodeError('Too many bytes when decoding varint.')

return DecodeVarint

_DecodeVarint = _VarintDecoder((1 << 64) - 1)

def _VarintEncoder():

"""Return an encoder for a basic varint value (does not include tag)."""

local_chr = chr

def EncodeVarint( value):

bits = value & 0x7f

value >>= 7

z=""

while value:

z += local_chr(0x80|bits)

bits = value & 0x7f

value >>= 7

return z + local_chr(bits)

return EncodeVarint

_EncodeVarint = _VarintEncoder()

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